Convicted criminals living within restricted zones for next year's G20 Summit in Brisbane could get a short holiday at taxpayers' expense.

The Queensland Government last night passed legislation to strengthen police powers during the G20 events in Brisbane and Cairns.

The legislation declares special security areas in the two cities, gives police extra search and arrest powers, and creates offences for actions such as crossing barriers and disrupting meetings.

Police Minister Jack Dempsey says locals who do not pass criminal history checks will be denied access to restricted zones and alternative accommodation will be provided at the cost of a few hundred dollars.

"If there are people who the authorities think will put the operation at risk, those people will be advised they will not be able to go into those restricted areas," he said.

"We envisage that the majority of Queenslanders would be able to pass the federal categorization of people not being allowed to go into those areas, so we're expecting 99 per cent of people being able to go freely once they've had their criminal history checks and balances in place."

Cans, jars, whips, eggs, guns, bows and arrows all banned

The bill prohibits a series of items from G20 zones, including weapons - firearms, swords, longbows and spearguns - as well as miscellaneous items such as cans, jars, whips, and eggs.

Also on the prohibited items list are insects and reptiles, banners that measure larger than 100cm in height by 200cm in width, and remote-controlled planes.

Mr Dempsey says Queensland's reputation will be on the line as the "as the eyes of the world" watch Queensland.

Terry O'Gorman from the Queensland Council for Civil Liberties says people who are moved out of restricted zones could be left without accommodation because hotels are already booked out.

"The fact is all of the hotels around town have already been booked up so all of the secondary accommodation like units that might be on the market - they'll be booked out," he said.

"These so-called criminals could end up having to live on the fringe of suburbia."